[src/trunk]: src/sys/net sys/net/if.c: Eliminate __HAVE_ATOMIC_AS_MEMBAR cond...

[riastradh <riastradh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/bee8e23c61e6
branches:  trunk
changeset: 373680:bee8e23c61e6
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Fri Feb 24 11:02:45 2023 +0000

description:
sys/net/if.c: Eliminate __HAVE_ATOMIC_AS_MEMBAR conditionals.

Discussed on tech-kern:
https://mail-index.netbsd.org/tech-kern/2023/02/23/msg028729.html

diffstat:

 sys/net/if.c |  8 ++------
 1 files changed, 2 insertions(+), 6 deletions(-)

diffs (33 lines):

diff -r 43a765c88c88 -r bee8e23c61e6 sys/net/if.c
--- a/sys/net/if.c      Fri Feb 24 11:02:27 2023 +0000
+++ b/sys/net/if.c      Fri Feb 24 11:02:45 2023 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: if.c,v 1.528 2022/11/25 06:18:42 msaitoh Exp $ */
+/*     $NetBSD: if.c,v 1.529 2023/02/24 11:02:45 riastradh Exp $       */
 
 /*-
  * Copyright (c) 1999, 2000, 2001, 2008 The NetBSD Foundation, Inc.
@@ -90,7 +90,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if.c,v 1.528 2022/11/25 06:18:42 msaitoh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if.c,v 1.529 2023/02/24 11:02:45 riastradh Exp $");
 
 #if defined(_KERNEL_OPT)
 #include "opt_inet.h"
@@ -1797,14 +1797,10 @@
        KASSERT(ifa != NULL);
        KASSERTMSG(ifa->ifa_refcnt > 0, "ifa_refcnt=%d", ifa->ifa_refcnt);
 
-#ifndef __HAVE_ATOMIC_AS_MEMBAR
        membar_release();
-#endif
        if (atomic_dec_uint_nv(&ifa->ifa_refcnt) != 0)
                return;
-#ifndef __HAVE_ATOMIC_AS_MEMBAR
        membar_acquire();
-#endif
        free(ifa, M_IFADDR);
 }